Descriptoin

After testing a single pot fading and blinking, I tested controlling brightness/blinking LED through 2 potentiometers.(opt1) I also checked color mixing through manipulating the potentiomenters.(opt2)

Components

3 LED, 3 Resistors, 2 Potentiometers, Arduino Board, Breadboard, Wires

Arduino Code

opt1)

int pot1Pin = 0;   // select the input pin for the potentiometer 1
int pot2Pin = 1;   // select the input pin for the potentiometer 2
int pot1Val = 0;   // variable to store the value coming from pot 1
int pot2Val = 0;   // variable to store the value coming from pot 2
int redPin = 9;   //  the pin for the red LED
int greenPin = 10; // the pin for the green LED
int bluePin = 11;  // the pin for the blue LED
void setup() {
   pinMode(redPin, OUTPUT);  // declare the led1Pin as an OUTPUT
   pinMode(greenPin, OUTPUT);  // declare the led2Pin as an OUTPUT
   pinMode(bluePin, OUTPUT); //
}
void loop() {
   pot1Val = analogRead(pot1Pin);   // read the value from pot 1, between 0 - 1024, for dimming
   pot2Val = analogRead(pot2Pin);   // read the value from pot 2, between 0 - 1024, for blinking
   analogWrite(redPin, pot1Val/4); // dim LED to value from pot1
   analogWrite(greenPin, pot1Val/4);
   analogWrite(bluePin, pot1Val/4);
   delay(pot2Val);                  // stop the program for some time, meaning, LED is on for this time
   analogWrite(redPin, 0);         // dim LED to completely dark (zero)
   analogWrite(greenPin, 0);
   analogWrite(bluePin, 0);
   delay(pot2Val);                  // stop the program for some time, meaning, LED is OFF for this time
} 

opt2)

int aIn = 1;    // the inputpin for potentiometer 1
int bIn = 2;    // the inputpin for potentiometer 2 
 
int rOut = 9;   // goes to Red LED
int gOut = 10;  // goes to green LED

int aVal = 0;   // Variables to store the input from the potentiometer1
int bVal = 0;   // Variables to store the input from the potentiometer2

int i = 0;            // Loop counter
int wait = (1000);    // Delay between most recent pot adjustment and output

int checkSum     = 0; // Aggregate pot values
int prevCheckSum = 0;
int sens         = 3; // Sensitivity theshold, to prevent small changes in
                      // pot values from triggering false reporting
// FLAGS
int PRINT = 1; // Set to 1 to output values
int DEBUG = 1; // Set to 1 to turn on debugging output

void setup()
{
  pinMode(rOut, OUTPUT);   // sets the digital pins as redLED
  pinMode(gOut, OUTPUT);   // sets the digital pins as greenLED
  Serial.begin(9600);     // Open serial communication for reporting
}

void loop()
{
  i += 1; // Count loop

  aVal = analogRead(aIn) / 4;  // read input pin1, convert to 0-255 scale
  bVal = analogRead(bIn) / 4; // read input  pin2, convert to 0-255 scale
 

  analogWrite(rOut, aVal);    // Send new values to RedLED
  analogWrite(gOut, bVal);    // Send nte vlauese to BlueLED

  if (i % wait == 0)                // If enough time has passed...
  {   
    checkSum = aVal+bVal;           // ...add up the 2 values.
    if ( abs(checkSum - prevCheckSum) > sens )   // If old and new values differ
                                                  // above sensitivity threshold
    {
      if (PRINT)                    // ...and if the PRINT flag is set...
      {
        Serial.print("A: ");        // ...then print the values.
        Serial.print(aVal);        
        Serial.print("\t");
        Serial.print("B: ");       
        Serial.print(bVal);
        Serial.print("\t");
       
        PRINT = 0;
      }
    } 
    else
    {
      PRINT = 1;  // Re-set the flag  
    }
    prevCheckSum = checkSum;  // Update the values

    if (DEBUG)   // If we want debugging output as well...
    {
      Serial.print(checkSum);
      Serial.print("<=>");
      Serial.print(prevCheckSum);
      Serial.print("\tPrint: ");
      Serial.println(PRINT);
    }
  }
}